Ready
indicator
(green)
Error
indicator
(orange)
Toner
indicator
(orange)
Display of
Remote
Panel
Program
Condition Action
Off Slow
blinking
* P/U END Photoconductor unit
end
Replace the
photoconductor unit.
Note: 
Printing can continue,
however, the printing
results are not
guaranteed.
If printing is continued,
the Error indicator
(orange) lights up and
printing stops.
* Differs depending on the toner status.
Error Messages
These messages indicate errors which you must correct before a print job can continue or the printer
status return to “Ready”.
Ready
indicator
(green)
Error
indicator
(orange)
Toner
indicator
(orange)
Display of
Remote
Panel
Program
Condition Action
Off Rapid
blinking
On TONER
OUT /
CHANGE X
(YMCK)
TONER
Toner out
Note: 
This message appears
when the Toner Out
Stop in the Remote
Panel Program is set to
On.
Replace the toner
cartridge.
Note: 
If Toner Out Stop in the
Remote Panel Program
is set to Off, printing can
continue.
However, the printing
results are not
guaranteed.
AcuLaser C1600     User’s Guide
Troubleshooting     70